Spoke tenoning and throating machine



(No Model.) 4 Sheets-Sheet 1.

W. H. DOANE 82; G. WBUGBEE. SPOKE TENONING AND THROATING MACHINE.

No. 276,009. Patented Apr. 17,1883.

N. PETERS, Photo-Ulhngnphnr, Washington. D. Q

WITN ESSESI INVENTORE (No Model.) 4 Sheets-Sheet 2.

W. H. DOANE & G. W. BUGBEE.

SPOKE TENONING AND THROATING MAGHINE.

Patented Apr. 17,1883.

-|NVENTO N, PETERS. Pholu-Liihcgmpher. Washingan, HQ

(No Model) 4 Sheets-Sheet 3.

W. H.-DOANB 85 G. W. BUGBEE;

SPOKE TENONING AND THROATING MAGHINE. No. 276,009 I Patented Apr.17,1883.

. mun- WITNESSES: .lNvENToF 5 Mm 2%;

N4 'Pzrzas. Photo-Lithographer, Washlllgtm u. c

(No Model.) 4 Sheets-Sheet; 4. 'W. H. DOANE & G. W. BUGBEE. SPOKETENONI'NG AND THROATING MACHINE. No. 276,009.

Patented Apr. 17,1883.

INVENTO S,

N PETERS PhnlmLiihOgnphar, Waninghm D. C.

UNITED STATES PATENT Trice.

WILLIAM H. DUANE AND GEORGE W. BUGBEE, OF CINCINNATI, OHIO.

SPOKE TENONING AND TH ROATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 276,009, dated April17, 1883,

Application filed January 15, 1883.

To all whom it may concern:

Be it known that we, WILLIAM H. DOANE and GEORGE W. BUGBEE, citizens ofthe United States, residing at Cincinnati, in the county of Hamilton andState of Ohio, have invented certain new and useful Improvements inSpoke Tenoners and Throaters; and we do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention consists of a machine adapted to both tenon and throatspokes during one and the same passage, or to either tenon or throatthem, at the pleasure of the user, by feeding such spokes by an endlessarticulated bed or other feeding mechanism through, between, or pastsuitable cutter-heads.

The novel features of construction and the novel combinations embodiedin the machine are set forth in the claims at the close of thisspecification.

In order that the invention may be clearly understood, we haveillustratedin the annexed drawings and will proceed to describe the bestform of the combined machine at present known to us.

Figure 1 is a plan view of the machine. Figs. 2 and 2 illustrate a frontelevation of the same. Fig. 3 is a side elevationthereof. Figs. 4 to 6illustrate details of the machine.

The same letters of reference indicate identical parts in all thefigures.

The main frame of the machine consists of a hollow column, A,constructed with suitable wings for the support respectively of thestandard A, on which the slides of the tenoning cutter-heads aremounted, and the housings A of the articulated endless traveling bed.The front face of standard A is provided with parallel vertical ways, onwhich the slides B and O are fitted. These slides are connected by ascrew, 0, which is swiveled to one and engages a nut on the other, sothat by turning the screw by the handwheel C secured thereto, the slideprovided with the nut may be adjusted with reference to the other slide.In this instance the lower slide, 0, is provided with the nut for screw0 The upper slide, B, is also provided with a nut, which is engaged by ascrew, B which extends upward and is swiveled to a bracket (No model.)

on standard A, carrying at its upper end a hand-wheel, B By turningscrew B by its hand-wheel both slides B and C may be simultaneouslyadjusted. A horizontal shaft, B is journaled in suitable bearings ofslide B, carrying at its inner end the upper tenoning cutter-head, B,and at its outer end apulley, B", by which it is driven. A similarhorizontal shaft, 0 isjournaled in suitable bearings of slide 0,carrying at its inner end the lower tenoning cutter-head, G, and at itsouter end a pulley, C by which it is driven. The tenoning cutter-headsmay be ofany preferred construction, and armed with suitable cutters inthe ordinary way. The pulleys B and 0 arranged in liue,'are driven by asingle belt, E from a pulley, E, on the shaft E of the machine, in themanner clearly shown in Fig. 3, the belt being kept at proper tensionunder all adjustments of the slides B and O by a tightener-pulley, Ejournaled on a stud projecting laterally from the short arm of a lever,E", which is fulcrumed on standard A, and carries an adjustable weighton its long arm. 3

In order to prevent vibration and endwise movement of the spoke duringits passage through between the tenoning cutter-heads, holders areprovided, the lower one of which is unyielding and bears on the lowerside of the spoke, while the upper one, which bears on the upper side ofthe spoke,-is yielding. These holders extend across the ends of therespective cutterheads in close proximity thereto, (see Figs. 1 and 2,)so that they will bear on the spoke close to the shoulder of the tenonto be'cut thereon. is a straight steel bar set up edgewise and firmlyheld in a groove in the top of a bracket, F, which projects from slide0, to which it is so fitted as to be vertically adjustable thereon, inorder that holder F may be set at the proper elevation with respect tocutterhead 0. The top edge of holder F projects a little above itssupporting-yoke, and has a (lull edge, so that it may make a slightindentation Thelower holder, F,

in the spoke before reaching the cutter-heads and thus compel the spoketo continue its advance without endwise deviation. .The upper holder, G,is a fiat bar arranged edgewise in a slot in the lower edge of a yoke,G, which projects from slide B, and is so fitted thereto that it may bevertically adjusted thereon for suspending holder G at the proper heightwith respect to cutter-head B. Holder G is provided with vertical slots,through which pass pins secured in the yoke to prevent the falling ofthe holder from its seat in the yoke. Near each end of holder Ga pocketis formed above it in the yoke for the reception of aspiral or rubberspring, by means of which the holder is pressed downward to act with ayielding pressure on the top of the spoke. Thelength of the tenon to becut is determined by the gage F fitted on the forward end bracket, F,and adjustable crosswise thereon.

The throating cutter-heads are located some little distance to the rearof the tenoning cutter-heads and project beyond the outer ends thereof.Thus a spoke may be fed by the same endless traveling bed from thetenoning cutter-heads to and through between the throatin g cutter-headsand throated at the proper point. The lower throatin g cutterhead, H, isarranged so far in advance of the upper one, I, that they may swing pasteach other far enough to throat the spoke to a sharp edge, if desired.The cutter-head 'H is fixed to theinner end of a shaft, H, journaled insuitable bearings of a hanger, H and carrying at its outer end arim-pulley, H The hanger H is pivoted on a stud, h, projectinghorizontally from the front side of a slide, H", gibbed to a verticalrail on an offset formed on the front side of the column A of the mainframe. Slide H is provided with a nut which is engaged by thescrew-threaded upper end of a downwardly-projecting screw swiveled tothe main frame and provided at its lower end with a suitable hand-wheelfor turning it. Gutter-head I is fixed to the inner end of a shaft,I,journaled in suitable bearings of a gaged by the screw-threaded lowerend of a from pulleys on a counter-shaft, (not shown,)

but arranged in a plane about midway between the cutter-head shafts Hand I. An-

other pulley on the same counter-shaft drives a pulley, E keyed to shaftE by a crossed belt,

E. The hanger H is so hung that its cutterhead has a constant tendencyto move upward, while hanger l is so hung that its cutter-head has aconstant tendency to' move downward, and the action of the belts H and1" furthers these tendencies. The hangers may be pro vided withadjustable weights for convenience of balancing the downward pressure ofone cutter-head by the upward pressure of the other. The respectiveframes of the hangers H and 1 are extended behind their cutterheads toreach beyond the outer ends thereof.

To each of these extensions a horizontally-adjustable bracket- (marked hand t", respectively) is fitted, projecting across the ends of therespective cutter heads H and I. To bracket h is secured avertically-adjustable bar, h of horseshoe form, projecting upward fromsaid bracket, and a similar verticallyadjustable bar, & is secured tobracket i, projecting downward therefrom. They act as directors,determining the lines of the cuts of the cutter-heads H and I byfollowing the cross-sectional contourof every spoke fed past or acrosstheir closed curved ends.

In order that the tenoned end of the spoke may be supported during theaction of the throatingcutter-heads,guidesKand K are provided behind therear ends ofsaid cutter-heads, extending from near the tenoningcutter-heads to past the center of the throating cutter-head I. Thelower guide, K, is fitted to slide in a horizontal guidewayin the top ofthe step of column A, and is adjusted by a screw, in directions parallelto the axis ofthe throating cutter-heads. The upper guide, K, is fittedin an uprightkneeof thelowerguide, andis adjusted vertically by a screw,k. By proper adj ustments by means of screws k and it these tenonguidesmay be adjusted to the length and thickness of the tenons.

The articulated endless traveling bed for feeding the spokes through themachine consists of a pair of endless chains, L L, and a series ofcross-slats, L, secured to said endless chains, and provided withsuitable fingers for holding the spokes. passed around flanged wheels ona shaft, L", at the front end of housing A, and around sprocket-wheelson a shaft, L at the rear end vof said housing. Shaft L isjournaled infixed bearings, while shaft L is journaled in horizontallyadjustablebearings, by adjusting which the chains LLmay be properlystretch ed.Shaft L is driven at the proper speed by a train of spur-wheels from ashaft, M, which is in turn driven by a cone friction-clutch. The femalecone, M, thereof, which is also a pulley, turns loosely on shaft M, andis driven by a belt from a pulley on the same counter-shaft which drivesthe throatingcutter-heads. The male cone, M thereof is feathered toshaft M, so that it may be slidthereon, and is constructed with acircular groove in its hub, which is engaged by the forked end ofashifter-rod, M pivoted at its other end to lever M,

The endless chains are which is fulcrumed on the main frame, and

constructed with a handle which reaches to the front end of thetraveling bed, where the operator stands in supplying it with spokes.The top edges of the sides of housing A form parallel horizontal railsfor the support of the ends of slats L. At each end each slat L isprovided with a pair of fingers, Z l, which project at right angles fromthe face of the slat, and are'formed on the reverse ends of arms fittedside by side in a dovetailed groove across the slat. In order that thesefingers may be firmly held in place, and also readily adjusted withreference to each other as well as with reference to the slat, they aresecured by crowding them against each other toward one edge of thedovetailed groove of the slat by a screw, 1 the tapering head of whichmay act directly on the beveled edge of one of the fingers, or which mayoperate a wedging cap, i as shown.

A presser-bar, N, is provided for holding the spokes down on the slatsof the traveling bed. The shank of this presser-bar is curved, as shownin Fig.1, and fitted on a vertical dovetailed railon the side of colum nA, a screw, N, swiveled to a lug on said shank and screwing into a nuton the column, being employed to hold the presser-bar at any requiredelevation above the traveling bed. A deep groove is formed in the loweredge of this prcsser-bar for the accommodation of a series of yieldingpressers, a, which are suspended at each end from pins fixed in thepresser-bar and passing through vertical slots in the pressers n, Spiralor rubber springs are inserted in pockets of presser-bar above thepresser, near their ends, which force the pressers with yieldingpressure down upon the spokes. The adjacent ends of every two pressersare lap-jointed and their lower corners rounded. By virtue of theseyielding pressers the presser-bar is enabled to hold down everyindividual spoke with equal force, since the pressers accommodatethemselves to differences in the thickness of the spoke.

In the practical operation of this machine the spokes are fed crosswisein a straight line through between the cutter-heads. In order that thespokes may be tenoned as required to give the proper dish when driveninto a wheelhub, they are fed lying at a slight slant on the travelingendless bed. This slant is determined by adjustment of the fingers l lat one end of slats L with reference to the fingers at the other endthereof. As each slat moves up around the flanged wheels of shaft L atthe front end of the machine, the operator places a blank-spoke betweenthe fingers thereof, taking care to run the end to be tenoned andthroated up against the gage F Immediately afterward the spoke passesunder presser-bar N and between holders F and G, the presserbar holdingthe spoke down from that time until it is discharged, after having beentenoned and throated. After a tenon has been cut on it, its tenoned endpasses between the guides K and K, whereby this end is supported untilthe throating is finished. The tenoned and throated spokes, on fallingfrom the fingers of the traveling bed at the rear end of themachine, maybe received in a rack.

IVe believe that we are the first to produce a machine adapted to firsttenon and then throat a spokeas it is being fed through the machine. Inview of this fact we do not propose to confine ourselves primarily tothe particular form of our invention illustrated and hereinbeforedescribed in detail, the embodiment of the invention being capable ofassumingforms in many respects quite different therefrom. For instance,instead of using a pair of tenoning cutter-heads and a pair of throatingcutter-heads, only a single tenoning cutter-head and a single throatingcutter-head may be employed, so as to operate on only one side of thespoke at the time. Other means than'an endless traveling bed and apresserbar may be used for feeding the spoke and holding it steady-as,for instance, a reciprocating carriage and presser-rollers.

Having thus described our invention, what we claim is-- 1. A machine fortenoning and throating spokes at a single pass, characterized bycontaining a tenoning cutterhead, a yielding throating cutter-head,which projects beyond the tenonin g cutter-head, and feed mechanism forconveying the spoke in the specified relation past the cutter-heads,substantially as before set forth.

2. The combination, substantially as before set forth, of a pair oftenoning cutter-heads, a pair of yielding throating cutter-heads, whichproject beyond the tenoning cutter-heads, and feed mechanism forconveying the spokes in the specified relation past the cutter-heads.

3. The combination, substantially as before set forth, of the yieldingthroating cutterheads, having the form substantially as shown,

and the articulated endless traveling bed, having spoke-clamps, asdescribed.

4. The combination, substantially as before set forth, of the yieldingthroating cutterheads, the articulated endless traveling bed, havingspoke holders, as described, and a presser-bar over said bed.

5. The combination, substantially as before set forth, of the tenoningcutter-heads, the spoke-holders associated therewith for holding thespokes at the throat, the guides for the tenon of the spoke, theyielding throatingcutter-heads, and feed mechanism for conveying thespokes in the specified relation past the cutter-heads.

6. The combination, substantially as before set forth, of the tenoningcutter-heads, the spoke-holders associated therewith for holding thespokes at the throat, the guides for the tenon of the spoke, theyielding throating cutter-heads, the articulated endless traveling bed,and a presser-bar over said bed.

7. A presscr-bar provided with a presser or pressers arranged in agroove-in the edge of said bar and bearing against springs therein,

IIO

the adjacent ends of the pressers overlapping In testimony whereof weaflix our signatures each other, substantially as before set forth. inpresence of two witnesses.

8. The combination, substantially as before WILLIAM HOWARD DOANE. setforth, of the slats of the articulated endless GEORGE WARREN BUGBEE. 5traveling bed, one pair of adjustable fingers at Witnesses:

one end of each slat, and a similar pair of such ALBERT N. SPENCER,

fingers at the other end thereof. J. A. CLARK.

